1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreas93 [3]
3 years ago
14

Maura drives to work, a distance of 30 miles in 40 minutes. she takes the same route to return home. if her average speed on the

trip home is half as fast as her average speed on the trip to work, what is her average speed, in miles per hour, for the entire round trip
Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0

Well to solve this firstly we should calculate her average speed while she was going to work. Which comes out to be 45 miles per hour.

Now if her average speed while going home is half as fast as while coming to work was, the answer would be 22.5 miles per hour. So the average speed for the total journey would be the average for these two values. As the distance was same for both the journeys we can simply do 45 + 22.5 / 2 = 33.75 mph.

You might be interested in
4(x+9)=8x-7<br> Solve for x
valentina_108 [34]

Answer:

x = 10.75

Step-by-step explanation:

4(x+9)=8x-7

Step 1: Distribute the 4 to the x and 9

4 * x = 4x

4 * 9 = 36

We now have 4x + 36 = 8x - 7

Step 2: add 7 to both sides

36 + 7 = 43

-7 + 7 cancels out

We now have 4x + 43 = 8x

Step 3 subtract 4x from both sides

4x - 4x cancels out

8x - 4x = 4x

We now have 4x = 43

step 4 divide both sides by 4

4x / 4 ( the 4s cancel out and we're left with x )

43/4 = 10.75

We're left with x = 10.75

3 0
2 years ago
13x+5y=90 what is x? what is y?
Leona [35]

Answer:

X=-5y/13+90/13, Y=-13x/5+18

Step-by-step explanation:

You need to solve the equation for X and Y.

Solving for X:

13x+5y=90

Subtract 5y: 13x=-5y+90

Divide by 13: x=-5y/13+90/13

--

For Y:

13x+5y=90

Subtract 13x: 5y=-13x+90

Divide by 5: y=-13x/5+90/5

(Simplifies to -13x/5+18)

3 0
3 years ago
Convert the following standard form equations in to slope y-intercept form (y=mx+b)
olganol [36]

4x-3y+18=0

-4 -4

-3y+18=4x

-18 -18

-3y=4x-18

÷-3 ÷-3 ÷-3

1y=-4/3x+6

8 0
2 years ago
Sarah wants to join a gym. Fitness Gym charges a $120 enrollment fee and $25 a month. Sports Gym charges no enrollment fee and $
kirill [66]

Answer:

it will take about 6 months

4 0
2 years ago
Read 2 more answers
If Johnny has 22 biscuits and Lucy has 5 how many biscuits does Ruby have?
stepan [7]

Answer:

Ummmmm none I guess

Step-by-step explanation:

rawr

4 0
2 years ago
Read 2 more answers
Other questions:
  • Neal opened a savings account 11 years ago with a deposit of $2,335.69. The account has an interest rate of 4.3% compounded dail
    9·1 answer
  • Naoko found a deck of playing cards that had been dropped onto the floor. she picked up at least one card. she may have picked u
    5·1 answer
  • Which is greater 81.9,81.90,81.900 or 81.91?
    8·2 answers
  • I need help on this question
    6·1 answer
  • What is four sevenths of 35?
    13·2 answers
  • Help ASAP with 10&amp;11 ASAP thanksss
    15·1 answer
  • What si the answer to the following question<br> y = x ^2 + 3 x + 3
    6·2 answers
  • Marking brainliest <br><br><br> Please help !
    12·1 answer
  • Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu
    13·1 answer
  • Just answer this quistion
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!